🦊 Number Theory Vault Adventure

中文
Score: 0
⏱️ 00:00

Unlock the ancient seals behind the numbers!

👉 Exploration Guide:
🦊 Lv 1~4 [Kitsune Array]: Identify multiples of 9. Note! Don't just check if it ends in 9, you must "sum" all digits!
🧝‍♂️ Lv 5~8 [Elf Scale]: Identify multiples of 11. Sum "odd positions" and "even positions" separately, then subtract. A difference of 0 is also a multiple of 11!
🔐 Lv 9~12 [Vault Lock]: A digit is missing □. Deduce which digit (0~9) unlocks it.

⚠️ You must predict the answer to unlock animations! Correct: +20 pts. Wrong: -5 pts.
Level 1
Preparing...
0000
🤔 Predict: Is this a multiple?

🏆 Vault Leaderboard

🏆 By Highest Score 🕒 By Latest Attempt
Rank Name Highest Score ⏱️ Time Date
11 帥哥良 240 01:37 2026-03-22
12 張奕暘 240 01:44 2026-04-08
13 Nono 240 01:47 2026-08-06
14 張祐豪 240 01:51 2026-04-13
15 90218 240 01:54 2026-03-31
16 90208 240 02:00 2026-04-30
17 584 240 02:07 2026-09-30
18 70422 240 02:09 2026-04-08
19 90209 240 02:21 2026-03-31
20 70417 240 02:21 2026-04-08